What do you do if your friend starts a zoom with you, then makes you host and says I'll be back soon, but never comes back? How should I respond? Honestly it makes me kinda sad. :( Help me please

Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?

What do we mean by the event horizon of a black hole?